sack meat

Rob, that's what I was going to say.

Wheel fitment straight from Stoptech:
http://www.stoptech.com/tech_info/wheel_fitment.shtml

Yep. :) I <3 Stoptech's white pages. That was the next thing I was gonna link :p

Yah, it shows how you need to measure distance to the spoke for brake clearance, showing that its spoke design that is important.

And with that, I digress.

Wheel companies sell different faces for the same wheel with different back spacing. So the spoke design may be the same but the back spacing itself is different. You have have the same offset all at the same time.

Shawn, you aren't making any sense.

I didnt want to say it.

put me into the "spoke/wheel design dictates brake clearance, not offset" column

I think whitezenki already said it: no matter what offset you look at, you can have a spoke design that will clear BBK's.

got the wheels today, and the fear of them clearing the BBK has come over me....anyone have the spec sheet/ template of the brembo 4 piston calipers?

im suddenly terrified

But you have the wheels, you have the brakes. If you have some way to jack up the car and remove the wheels that are on there, you have a perfect way to test fitment.

But if they don't fit, you can get away with a spacer. Not because it will change the offset but because it will space the spokes away from the caliper.

Just test fit them, but if they are anything like my Cobra wheels, your gonna need to space them out a bit.

Wider stance FTW.

Can I play?

I think this makes it pretty clear...

Offset is the relation of hub face to wheel width center. A wheel could have an offset of 35 with 0 hub height.

Quick Illustration, 3 wheel designs, same offset, different hub height
http://zcon.photodump.org/files/12/H...ight%20Ill.JPG

Real world

http://zcon.photodump.org/files/12/Hub%20Height.JPG

ugh yeah, cool, um i test fitted them and they fit great, i had to get some hub rings but i gave the dimensions to extreme psi and they came thru.

pretty soon (in my head at least) ill be gettin r comps for the spring race season and ill be ready to go. im gonna be usin these wheels and tire combo strictly for track days....
final specs are
18x9
5x114.3
+36

with 245/40 18 r comp nitto nt01 on all four corners

After driving my new car, 245 R compounds sound amazing.